What's the most power ypu have ever seen an N/A Z put on the ground? Assuming stock block (ie.no increased compression or stroke).

 

on stock internals? not much. maybe 250-255 whp

 

more

 

i heard you couldn't get more than 300whp fully built on a n/a vqde.

 

I actually seen more then that on stock 07's

If we are talking totally stock internals and just boltons, I would think that even the 300 whp mark would be tuff.
Are we talking like no cams too?

 

Without any internal work

DE- 260s

Rev Up - 280

HR - I wouldn't be suprised if they strike 300 or even more with full bolt ons.

 

i said i heard, i didn't say i believed it. dick

 

I'm getting ready to tune my car with my UTEC this winter and with all the mods listed below I'm expecting it to be respectable. Once I get that done and dyno'd I'm sure I'll be posting up the results. A lot of the mods just make the car accelerate and handle better though so it's really going to be a more well rounded autocross/roadcourse car any ways. I'm hoping for somewhere around 270-280 with all the mods and a good tune.

 

Adam @ Z1 is puttin' down 305whp NA on a Dyno Dynamics. He's built though.

 

That would depend on what dyno you use.

 

Someone I know is trying to argue that 320 on the ground is possible without changing displacement or compression. Obviously if it's bored and stroked with increased compression thats possible. He keeps talking about head work like it's some magical source of power. A typical DE puts about 240 to the ground. Thats an 18% loss. To get 320 one would need 390 at the flywheel. I don't think that can be done.

 

I guess it's theoretically possible to achieve that with a stock bottom end....but you would have SO much invested in the heads/cams/headers, etc that not opting for a built bottom end (so you can rev, safely, and not have to worry), would be essentially pointless. I was almost going to go down the path of my current heads on a stock bottom end, but when you sit down to do the #'s, the bottom end is the least expensive part of the overall build, so it became a no brainer to do it right the first time

Head work is a magical source of power

 

without cams or headers? you might, might get close to 270 on a Dynojet. Over that, and it would take a Dynpack

 

Even porting and polishing the heads you'd pick up what like 20hp? And for how much? I already know N/A is not cost effective. I think that maybe with advanced timing, exhaust, intake, port/polish heads, etc. one might be able to put 290-300 to the ground. 320 does not seem possible.

 

With a turbonator and a flux capacitor you should be able to hit 300whp on a stock motor.

 

you don't mod these cars because they are cost effective...you mod them to take a thoroughly enjoyable platform, and make it perform literally on the level of cars costing 2 and 3 times the price.

Headwork is the KEY to power - no matter if its FI, NA, or whatever. The head package makes the power, the bottom end essentially has to just stay together. Porting and polishing can be done to varying degrees, all depending on the level to which one goes. Same goes for the cams, the headers, etc. Real power making heads goes WAY beyond "porting and polishing". It is literally an art form. True headwork is alot more than a die grinder and a spare evening. It is really easy to make heads perform worse than stock. That is why the guys who do it and get consistent results can charge whatever they want - you're paying for their expertise.

And then you get into the whole dyno discussion. 300 whp on one dyno does not equal 300 on another.

At the end of the day, no matter what route you pick with these cars, it is expensive to make even mildly impressive numbers, FI, or NA.